PHP find object has highest value in array

Question

I'm looking for shortest way to find the object which contains highest sort value.

array(5) {
  [0]=>
  object(stdClass)#212 (3) {
    ["id"]=>
    int(1)
    ["display_name"]=>
    string(8) "Activate"
    ["sort"]=>
    int(1)
  }
  [1]=>
  object(stdClass)#213 (3) {
    ["id"]=>
    int(2)
    ["display_name"]=>
    string(7) "Cutting"
    ["sort"]=>
    int(2)
  }
  [2]=>
  object(stdClass)#214 (3) {
    ["id"]=>
    int(3)
    ["display_name"]=>
    string(6) "Sewing"
    ["sort"]=>
    int(3)
  }
  [3]=>
  object(stdClass)#215 (3) {
    ["id"]=>
    int(4)
    ["display_name"]=>
    string(9) "Finishing"
    ["sort"]=>
    int(4)
  }
  [4]=>
  object(stdClass)#216 (3) {
    ["id"]=>
    int(5)
    ["display_name"]=>
    string(10) "Deactivate"
    ["sort"]=>
    int(5)
  }
}

Below is my practicing but I think it is complex and long of code.

// $gateways is the array contains a list of objects.

// find max sort value in array first
$max = max( array_map(function( $row ){ return $row->sort; }, $gateways) );

// then find in array object with sort value is equal to $max value
$filter = array_filter($gateways, function($row) use ($max){ 
  return $max == $row->sort;
});

if(count($filter)){
  $finalResult = array_shift($filter);
}

Is there shorter way to do this like reduce in Javascript?

Thanks.

php.net/manual/en/function.array-reduce.php

splash58
– splash58

2017-04-11 08:00:40 +00:00
Commented Apr 11, 2017 at 8:00 — splash58
– splash58, Commented Apr 11, 2017 at 8:00

Thanh Nguyen · Accepted Answer · 2017-04-11 09:14:13Z

8

Finally I did it.

$result = array_reduce($gateways, function($a, $b){
  return $a ? ($a->sort > $b->sort ? $a : $b) : $b;
});

answered Apr 11, 2017 at 9:14

Thanh Nguyen

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1 Comment

mickmackusa Over a year ago

This answer is fundamentally different from what your coding attempt does. Sorting is not the same thing as filtering and the time complexity is different as well.

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